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<h1>src/qvio/qvvideoreader.cpp</h1><a href="qvvideoreader_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001  <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> *      Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012. PARP Research Group.</span>
<a name="l00003"></a>00003 <span class="comment"> *      &lt;http://perception.inf.um.es&gt;</span>
<a name="l00004"></a>00004 <span class="comment"> *      University of Murcia, Spain.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> *      This file is part of the QVision library.</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> *      QVision is free software: you can redistribute it and/or modify</span>
<a name="l00009"></a>00009 <span class="comment"> *      it under the terms of the GNU Lesser General Public License as</span>
<a name="l00010"></a>00010 <span class="comment"> *      published by the Free Software Foundation, version 3 of the License.</span>
<a name="l00011"></a>00011 <span class="comment"> *</span>
<a name="l00012"></a>00012 <span class="comment"> *      QVision is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> *      but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
<a name="l00015"></a>00015 <span class="comment"> *      GNU Lesser General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> *      You should have received a copy of the GNU Lesser General Public</span>
<a name="l00018"></a>00018 <span class="comment"> *      License along with QVision. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
<a name="l00019"></a>00019 <span class="comment"> */</span>
<a name="l00020"></a>00020 
<a name="l00024"></a>00024 
<a name="l00025"></a>00025 
<a name="l00026"></a>00026 <span class="preprocessor">#include &lt;QUrl&gt;</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include &lt;QFile&gt;</span>
<a name="l00028"></a>00028 <span class="preprocessor">#include &lt;QDir&gt;</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include &lt;QThread&gt;</span>
<a name="l00030"></a>00030 <span class="preprocessor">#include &lt;QTime&gt;</span>
<a name="l00031"></a>00031 
<a name="l00032"></a>00032 <span class="preprocessor">#ifdef QVIPP</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#include &lt;qvipp.h&gt;</span>
<a name="l00034"></a>00034 <span class="preprocessor">#endif // QVIPP</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include &lt;QVImage&gt;</span>
<a name="l00037"></a>00037 <span class="preprocessor">#include &lt;QVVideoReader&gt;</span>
<a name="l00038"></a>00038 
<a name="l00039"></a>00039 <span class="preprocessor">#ifdef QVMPLAYER</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor">#include &lt;QVMPlayerReader&gt;</span>
<a name="l00041"></a>00041 <span class="preprocessor">#endif // QVMPLAYER</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span>
<a name="l00043"></a>00043 <span class="preprocessor">#ifdef QVOPENCV</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span><span class="preprocessor">#include &lt;QVOpenCVReader&gt;</span>
<a name="l00045"></a>00045 <span class="preprocessor">#endif // QVOPENCV</span>
<a name="l00046"></a>00046 <span class="preprocessor"></span>
<a name="l00047"></a>00047 <span class="preprocessor">#include &lt;QVYUV4MPEG2Reader&gt;</span>
<a name="l00048"></a>00048 <span class="preprocessor">#include &lt;QVDirReader&gt;</span>
<a name="l00049"></a>00049 
<a name="l00050"></a>00050 <span class="comment">// Auxiliary class and function for simulating a given delay (in msecs) between successive frames.</span>
<a name="l00051"></a>00051 <span class="keyword">class </span>SleeperThread : <span class="keyword">public</span> QThread
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 <span class="keyword">public</span>:
<a name="l00054"></a>00054     <span class="keyword">static</span> <span class="keywordtype">void</span> msleep(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> msecs)
<a name="l00055"></a>00055     {
<a name="l00056"></a>00056         QThread::msleep(msecs);
<a name="l00057"></a>00057     }
<a name="l00058"></a>00058 };
<a name="l00059"></a>00059 
<a name="l00060"></a>00060 <span class="keywordtype">void</span> simulateDelay(<span class="keywordtype">int</span> fps)
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062     <span class="keyword">static</span> QTime last_time;
<a name="l00063"></a>00063 
<a name="l00064"></a>00064     <span class="keywordtype">int</span> msecs_to_wait = (int)(1000/(<span class="keywordtype">double</span>)fps) - last_time.elapsed();
<a name="l00065"></a>00065 
<a name="l00066"></a>00066     <span class="comment">// std::cout &lt;&lt; &quot;last_time.elapsed()=&quot; &lt;&lt; last_time.elapsed() &lt;&lt; &quot;\n&quot;;</span>
<a name="l00067"></a>00067     <span class="comment">// std::cout &lt;&lt; &quot;(int)(1000/(double)fps)=&quot; &lt;&lt; (int)(1000/(double)fps) &lt;&lt; &quot;\n&quot;;</span>
<a name="l00068"></a>00068     <span class="comment">// std::cout &lt;&lt; &quot;msecs_to_wait =&quot; &lt;&lt; msecs_to_wait  &lt;&lt; &quot;\n&quot;;</span>
<a name="l00069"></a>00069 
<a name="l00070"></a>00070     <span class="keywordflow">if</span>((msecs_to_wait &gt; 0) and (msecs_to_wait &lt; (<span class="keywordtype">int</span>)(1000/(<span class="keywordtype">double</span>)fps)))
<a name="l00071"></a>00071         SleeperThread::msleep(msecs_to_wait);
<a name="l00072"></a>00072 
<a name="l00073"></a>00073     last_time.start();
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075 
<a name="l00076"></a><a class="code" href="classQVVideoReader.html#aa00f0803b14d9e6a9751f877d27eec83">00076</a> <a class="code" href="classQVVideoReader.html#aa00f0803b14d9e6a9751f877d27eec83" title="Constructs a QVVideoReader.">QVVideoReader::QVVideoReader</a>():
<a name="l00077"></a>00077     url(QString()), scheme(QString()),changing_size(false),cols(0), rows(0), fps(0), frames_grabbed(0),
<a name="l00078"></a>00078     camera_opened(FALSE), live_camera(FALSE), end_of_video(FALSE),
<a name="l00079"></a>00079     availableGray(false), availableRGB3(false), availableYUV(false), availableRGB(false),
<a name="l00080"></a>00080     imgGray(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage</a>&lt;uChar&gt;()), imgRGB(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage</a>&lt;uChar,3&gt;()),
<a name="l00081"></a>00081     imgY(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage</a>&lt;uChar&gt;()), imgU(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage</a>&lt;uChar&gt;()), imgV(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage</a>&lt;uChar&gt;()),
<a name="l00082"></a>00082     imgR(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage</a>&lt;uChar&gt;()), imgG(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage</a>&lt;uChar&gt;()), imgB(<a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage</a>&lt;uChar&gt;()),
<a name="l00083"></a>00083     open_options(<a class="code" href="classQVVideoReader.html" title="Extremely versatile class to read from multiple video devices and video/image file...">QVVideoReader</a>::Default), source_mode(<a class="code" href="classQVVideoReader.html" title="Extremely versatile class to read from multiple video devices and video/image file...">QVVideoReader</a>::YUVMode), base_reader(0)
<a name="l00084"></a>00084     {
<a name="l00085"></a>00085     };
<a name="l00086"></a>00086 
<a name="l00087"></a><a class="code" href="classQVVideoReader.html#a918bc822f2b44d3504e19d1cf770c9ce">00087</a> <a class="code" href="classQVVideoReader.html#a918bc822f2b44d3504e19d1cf770c9ce" title="Destroys a QVVideoReader.">QVVideoReader::~QVVideoReader</a>()
<a name="l00088"></a>00088     {
<a name="l00089"></a>00089     <span class="keywordflow">if</span> (camera_opened)
<a name="l00090"></a>00090         <a class="code" href="classQVVideoReader.html#ab9f4cfa4e439e0bb5ffd377e514de091" title="Closes the video source.">close</a>();
<a name="l00091"></a>00091 
<a name="l00092"></a>00092     <span class="keywordflow">if</span> (base_reader != 0)
<a name="l00093"></a>00093         <span class="keyword">delete</span> base_reader;
<a name="l00094"></a>00094     }
<a name="l00095"></a>00095 
<a name="l00096"></a>00096 
<a name="l00097"></a><a class="code" href="classQVVideoReader.html#a6f4fe8891a6fcdfbfaf31302af10785c">00097</a> <span class="keywordtype">bool</span> <a class="code" href="classQVVideoReader.html#a6f4fe8891a6fcdfbfaf31302af10785c" title="Opens a video source given by its URL, trying to use requested options, mode, speed...">QVVideoReader::open</a>(<span class="keyword">const</span> QString &amp; url_string, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &amp; suggested_cols,
<a name="l00098"></a>00098                          <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &amp; suggested_rows , <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> &amp; suggested_fps,
<a name="l00099"></a>00099                          <a class="code" href="classQVVideoReader.html#a5897497caf38c09bace454d3e205ede0" title="Open options for a video source.">QVVideoReader::OpenOptions</a> &amp; suggested_opts,
<a name="l00100"></a>00100                          <a class="code" href="classQVVideoReader.html#ae7f437e441e6b0d6c0acbb1edbdc6421" title="Possible preferred modes for video sources.">QVVideoReader::TSourceMode</a> &amp; suggested_source_mode)
<a name="l00101"></a>00101     {
<a name="l00102"></a>00102     <span class="keywordflow">if</span> (base_reader != 0)
<a name="l00103"></a>00103         <span class="keyword">delete</span> base_reader;
<a name="l00104"></a>00104 
<a name="l00105"></a>00105     <span class="comment">// Here we infer from the url the type of the base reader to read from:</span>
<a name="l00106"></a>00106 
<a name="l00107"></a>00107     <span class="comment">// First infer possible default schemes:</span>
<a name="l00108"></a>00108     QUrl URL(url_string);
<a name="l00109"></a>00109     <span class="keywordtype">bool</span> modify_url = <span class="keyword">true</span>;
<a name="l00110"></a>00110     QString mod_url_string;
<a name="l00111"></a>00111     scheme = URL.scheme();
<a name="l00112"></a>00112     <span class="keywordflow">if</span> (scheme != <span class="stringliteral">&quot;&quot;</span>) {
<a name="l00113"></a>00113         <span class="comment">// scheme specified by the user</span>
<a name="l00114"></a>00114         modify_url = <span class="keyword">false</span>;
<a name="l00115"></a>00115     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (url_string.startsWith(<span class="stringliteral">&quot;/dev/video&quot;</span>)) {
<a name="l00116"></a>00116         <span class="comment">// a v4l device</span>
<a name="l00117"></a>00117         scheme = <span class="stringliteral">&quot;v4l2&quot;</span>;
<a name="l00118"></a>00118     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (url_string.startsWith(<span class="stringliteral">&quot;/dev/dv&quot;</span>)) {
<a name="l00119"></a>00119         <span class="comment">// a dv device</span>
<a name="l00120"></a>00120         scheme = <span class="stringliteral">&quot;dv&quot;</span>;
<a name="l00121"></a>00121     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (url_string.contains(<span class="stringliteral">&quot;*&quot;</span>)) {
<a name="l00122"></a>00122         <span class="comment">// a multifile</span>
<a name="l00123"></a>00123         scheme = <span class="stringliteral">&quot;dir&quot;</span>;
<a name="l00124"></a>00124     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (url_string.startsWith(<span class="stringliteral">&quot;www.&quot;</span>)) {
<a name="l00125"></a>00125         <span class="comment">// a http file</span>
<a name="l00126"></a>00126         scheme = <span class="stringliteral">&quot;http&quot;</span>;
<a name="l00127"></a>00127     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (url_string.startsWith(<span class="stringliteral">&quot;ftp.&quot;</span>)) {
<a name="l00128"></a>00128         <span class="comment">// a ftp file</span>
<a name="l00129"></a>00129         scheme = <span class="stringliteral">&quot;ftp&quot;</span>;
<a name="l00130"></a>00130         } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (url_string.startsWith(<span class="stringliteral">&quot;#&quot;</span>)) {
<a name="l00131"></a>00131         <span class="comment">// an OpenCV camera number</span>
<a name="l00132"></a>00132         scheme = <span class="stringliteral">&quot;cvc&quot;</span>;
<a name="l00133"></a>00133     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (QDir(url_string).exists()) {
<a name="l00134"></a>00134         <span class="comment">// a local directory</span>
<a name="l00135"></a>00135         scheme = <span class="stringliteral">&quot;dir&quot;</span>;
<a name="l00136"></a>00136     } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (QFile::exists(url_string)) {
<a name="l00137"></a>00137         <span class="comment">// a local file</span>
<a name="l00138"></a>00138         <span class="keywordflow">if</span> (url_string.endsWith(<span class="stringliteral">&quot;.yuv&quot;</span>)) {
<a name="l00139"></a>00139             <span class="comment">// a yuv file</span>
<a name="l00140"></a>00140             scheme = <span class="stringliteral">&quot;yuv4mpeg&quot;</span>;
<a name="l00141"></a>00141         } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (url_string.endsWith(<span class="stringliteral">&quot;.jpg&quot;</span>) or url_string.endsWith(<span class="stringliteral">&quot;.png&quot;</span>) or url_string.endsWith(<span class="stringliteral">&quot;.bmp&quot;</span>) or
<a name="l00142"></a>00142                    url_string.endsWith(<span class="stringliteral">&quot;.pgm&quot;</span>) or url_string.endsWith(<span class="stringliteral">&quot;.gif&quot;</span>) or url_string.endsWith(<span class="stringliteral">&quot;.jpeg&quot;</span>) or
<a name="l00143"></a>00143                    url_string.endsWith(<span class="stringliteral">&quot;.pbm&quot;</span>) or url_string.endsWith(<span class="stringliteral">&quot;.ppm&quot;</span>) or url_string.endsWith(<span class="stringliteral">&quot;.tiff&quot;</span>) or
<a name="l00144"></a>00144                    url_string.endsWith(<span class="stringliteral">&quot;.xbm&quot;</span>) or url_string.endsWith(<span class="stringliteral">&quot;.xpm&quot;</span>) ) {
<a name="l00145"></a>00145             <span class="comment">// an image file</span>
<a name="l00146"></a>00146             scheme = <span class="stringliteral">&quot;dir&quot;</span>;
<a name="l00147"></a>00147         } <span class="keywordflow">else</span> {
<a name="l00148"></a>00148             <span class="comment">// possibly another types of video files</span>
<a name="l00149"></a>00149             scheme = <span class="stringliteral">&quot;file&quot;</span>;
<a name="l00150"></a>00150         }
<a name="l00151"></a>00151     } <span class="keywordflow">else</span> {
<a name="l00152"></a>00152         std::cout &lt;&lt; <span class="stringliteral">&quot;QVVideoReader::open(): Error: do not know how to open URL &quot;</span> &lt;&lt; qPrintable (url_string) &lt;&lt; std::endl;
<a name="l00153"></a>00153         <span class="keywordflow">goto</span> end_with_fail;
<a name="l00154"></a>00154     }
<a name="l00155"></a>00155 
<a name="l00156"></a>00156     <span class="keywordflow">if</span>(modify_url)
<a name="l00157"></a>00157         mod_url_string = scheme + QString(<span class="stringliteral">&quot;://&quot;</span>) + url_string;
<a name="l00158"></a>00158     <span class="keywordflow">else</span>
<a name="l00159"></a>00159         mod_url_string = url_string;
<a name="l00160"></a>00160 
<a name="l00161"></a>00161     <span class="comment">// std::cout &lt;&lt; &quot;USING URL=&quot; &lt;&lt; qPrintable (mod_url_string) &lt;&lt; &quot;\n&quot;;</span>
<a name="l00162"></a>00162 
<a name="l00163"></a>00163     <span class="comment">// Now treat here each scheme accordingly:</span>
<a name="l00164"></a>00164     <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;dir&quot;</span>)
<a name="l00165"></a>00165         {
<a name="l00166"></a>00166         base_reader = <span class="keyword">new</span> QVDirReader();
<a name="l00167"></a>00167         live_camera = <span class="keyword">false</span>;
<a name="l00168"></a>00168         }
<a name="l00169"></a>00169     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;yuv4mpeg&quot;</span>)
<a name="l00170"></a>00170         {
<a name="l00171"></a>00171         base_reader = <span class="keyword">new</span> QVYUV4MPEG2Reader();
<a name="l00172"></a>00172         live_camera = <span class="keyword">false</span>;
<a name="l00173"></a>00173         }
<a name="l00174"></a>00174 <span class="preprocessor">   #ifdef QVMPLAYER</span>
<a name="l00175"></a>00175 <span class="preprocessor"></span>   <span class="keywordflow">else</span> <span class="keywordflow">if</span>(scheme == <span class="stringliteral">&quot;file&quot;</span>)
<a name="l00176"></a>00176         {
<a name="l00177"></a>00177         base_reader = <span class="keyword">new</span> QVMPlayerReader();
<a name="l00178"></a>00178         live_camera = <span class="keyword">false</span>;
<a name="l00179"></a>00179         }
<a name="l00180"></a>00180     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;v4l2&quot;</span>)
<a name="l00181"></a>00181         {
<a name="l00182"></a>00182         base_reader = <span class="keyword">new</span> QVMPlayerReader();
<a name="l00183"></a>00183         live_camera = <span class="keyword">true</span>;
<a name="l00184"></a>00184         }
<a name="l00185"></a>00185     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;dvb&quot;</span>)
<a name="l00186"></a>00186         {
<a name="l00187"></a>00187         base_reader = <span class="keyword">new</span> QVMPlayerReader();
<a name="l00188"></a>00188         live_camera = <span class="keyword">true</span>;
<a name="l00189"></a>00189         }
<a name="l00190"></a>00190     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;rtsp&quot;</span>)
<a name="l00191"></a>00191         {
<a name="l00192"></a>00192         base_reader = <span class="keyword">new</span> QVMPlayerReader();
<a name="l00193"></a>00193         live_camera = <span class="keyword">false</span>;
<a name="l00194"></a>00194         }
<a name="l00195"></a>00195     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;http&quot;</span>)
<a name="l00196"></a>00196         {
<a name="l00197"></a>00197         base_reader = <span class="keyword">new</span> QVMPlayerReader();
<a name="l00198"></a>00198         live_camera = <span class="keyword">false</span>;
<a name="l00199"></a>00199         }
<a name="l00200"></a>00200     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;ftp&quot;</span>)
<a name="l00201"></a>00201         {
<a name="l00202"></a>00202         base_reader = <span class="keyword">new</span> QVMPlayerReader();
<a name="l00203"></a>00203         live_camera = <span class="keyword">false</span>;
<a name="l00204"></a>00204         }
<a name="l00205"></a>00205     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;dvd&quot;</span>)
<a name="l00206"></a>00206         {
<a name="l00207"></a>00207         base_reader = <span class="keyword">new</span> QVMPlayerReader();
<a name="l00208"></a>00208         live_camera = <span class="keyword">false</span>;
<a name="l00209"></a>00209         }
<a name="l00210"></a>00210     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;vcd&quot;</span>)
<a name="l00211"></a>00211         {
<a name="l00212"></a>00212         base_reader = <span class="keyword">new</span> QVMPlayerReader();
<a name="l00213"></a>00213         live_camera = <span class="keyword">false</span>;
<a name="l00214"></a>00214         }
<a name="l00215"></a>00215     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;mf&quot;</span>)
<a name="l00216"></a>00216         {
<a name="l00217"></a>00217         base_reader = <span class="keyword">new</span> QVMPlayerReader();
<a name="l00218"></a>00218         live_camera = <span class="keyword">false</span>;
<a name="l00219"></a>00219         }
<a name="l00220"></a>00220 <span class="preprocessor">    #else</span>
<a name="l00221"></a>00221 <span class="preprocessor"></span>    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (   (scheme == <span class="stringliteral">&quot;file&quot;</span>) or
<a name="l00222"></a>00222                 (scheme == <span class="stringliteral">&quot;v4l2&quot;</span>) or
<a name="l00223"></a>00223                 (scheme == <span class="stringliteral">&quot;dvb&quot;</span>) or
<a name="l00224"></a>00224                 (scheme == <span class="stringliteral">&quot;rtsp&quot;</span>) or
<a name="l00225"></a>00225                 (scheme == <span class="stringliteral">&quot;http&quot;</span>) or
<a name="l00226"></a>00226                 (scheme == <span class="stringliteral">&quot;ftp&quot;</span>) or
<a name="l00227"></a>00227                 (scheme == <span class="stringliteral">&quot;dvd&quot;</span>) or
<a name="l00228"></a>00228                 (scheme == <span class="stringliteral">&quot;vcd&quot;</span>) or
<a name="l00229"></a>00229                 (scheme == <span class="stringliteral">&quot;mf&quot;</span>) )
<a name="l00230"></a>00230         {
<a name="l00231"></a>00231         std::cout &lt;&lt; <span class="stringliteral">&quot;QVVideoReader::open(): Error: tried to open video with MPlayer, while QVision was not configured to use it. See file &#39;config.pri&#39;.&quot;</span> &lt;&lt; std::endl;
<a name="l00232"></a>00232         <span class="keywordflow">goto</span> end_with_fail;
<a name="l00233"></a>00233         }
<a name="l00234"></a>00234 <span class="preprocessor">    #endif // QVMPLAYER</span>
<a name="l00235"></a>00235 <span class="preprocessor"></span><span class="preprocessor">    #ifdef QVOPENCV</span>
<a name="l00236"></a>00236 <span class="preprocessor"></span>    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;cvf&quot;</span>)
<a name="l00237"></a>00237         {
<a name="l00238"></a>00238         base_reader = <span class="keyword">new</span> QVOpenCVReader();
<a name="l00239"></a>00239         live_camera = <span class="keyword">false</span>;
<a name="l00240"></a>00240         }
<a name="l00241"></a>00241     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (scheme == <span class="stringliteral">&quot;cvc&quot;</span>)
<a name="l00242"></a>00242         {
<a name="l00243"></a>00243         base_reader = <span class="keyword">new</span> QVOpenCVReader();
<a name="l00244"></a>00244         live_camera = <span class="keyword">true</span>;
<a name="l00245"></a>00245         }
<a name="l00246"></a>00246 <span class="preprocessor">    #else</span>
<a name="l00247"></a>00247 <span class="preprocessor"></span>    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( (scheme == <span class="stringliteral">&quot;cvf&quot;</span>) or (scheme == <span class="stringliteral">&quot;cvc&quot;</span>) )
<a name="l00248"></a>00248         {
<a name="l00249"></a>00249         std::cout &lt;&lt; <span class="stringliteral">&quot;QVVideoReader::open(): Error: tried to open video with OpenCV functionality, while QVision was not configured to use it. See file &#39;config.pri&#39;.&quot;</span> &lt;&lt; std::endl;
<a name="l00250"></a>00250         <span class="keywordflow">goto</span> end_with_fail;
<a name="l00251"></a>00251         }
<a name="l00252"></a>00252 <span class="preprocessor">    #endif // QVOPENCV</span>
<a name="l00253"></a>00253 <span class="preprocessor"></span>
<a name="l00254"></a>00254     cols = suggested_cols;
<a name="l00255"></a>00255     rows = suggested_rows;
<a name="l00256"></a>00256 
<a name="l00257"></a>00257     <span class="keywordflow">if</span>(base_reader != 0)
<a name="l00258"></a>00258         {
<a name="l00259"></a>00259         <span class="keywordflow">if</span>(base_reader-&gt;<a class="code" href="classQVBaseReader.html#a2103cc4c523995a94b1f38543b7f0d34" title="Pure virtual open method.">open</a>(mod_url_string,suggested_cols,suggested_rows,suggested_fps,
<a name="l00260"></a>00260                          suggested_opts,suggested_source_mode))
<a name="l00261"></a>00261             {
<a name="l00262"></a>00262             url = mod_url_string;
<a name="l00263"></a>00263             <span class="comment">// scheme initialized before;</span>
<a name="l00264"></a>00264 
<a name="l00265"></a>00265             <span class="comment">// If input cols=0 or rows=0, set to default input values (as returned by corresponding open method):</span>
<a name="l00266"></a>00266             <span class="keywordflow">if</span> ((cols == 0) or (rows == 0)) {
<a name="l00267"></a>00267                 cols = suggested_cols;
<a name="l00268"></a>00268                 rows = suggested_rows;
<a name="l00269"></a>00269             }
<a name="l00270"></a>00270             <span class="comment">// Force even number of cols and rows (for possible YUV conversions, with U and V half-sized):</span>
<a name="l00271"></a>00271             cols = cols &amp; 0xfffffffe;
<a name="l00272"></a>00272             rows = rows &amp; 0xfffffffe;
<a name="l00273"></a>00273             changing_size = (cols == 0 or rows == 0);
<a name="l00274"></a>00274 
<a name="l00275"></a>00275             <span class="comment">// std::cout &lt;&lt; &quot;suggested_cols = &quot; &lt;&lt; suggested_cols &lt;&lt; &quot;  suggested_rows = &quot; &lt;&lt; suggested_rows &lt;&lt; &quot;\n&quot;;</span>
<a name="l00276"></a>00276             <span class="comment">// std::cout &lt;&lt; &quot;cols = &quot; &lt;&lt; cols &lt;&lt; &quot;  rows = &quot; &lt;&lt; rows &lt;&lt; &quot;\n&quot;;</span>
<a name="l00277"></a>00277 
<a name="l00278"></a>00278             fps = suggested_fps;
<a name="l00279"></a>00279             frames_grabbed = 0;
<a name="l00280"></a>00280             camera_opened = <span class="keyword">true</span>;
<a name="l00281"></a>00281             <span class="comment">// live_camera initialized before;</span>
<a name="l00282"></a>00282             end_of_video = <span class="keyword">false</span>;
<a name="l00283"></a>00283             availableGray = availableRGB3 = availableYUV = availableRGB = <span class="keyword">false</span>;
<a name="l00284"></a>00284             open_options = suggested_opts;
<a name="l00285"></a>00285             source_mode = suggested_source_mode;
<a name="l00286"></a>00286             <span class="comment">// base_reader initialized before;</span>
<a name="l00287"></a>00287             emit <a class="code" href="classQVVideoReader.html#a24596d37c6e4c6098f2460d22b9c33c8" title="Signal emitted when video source has been opened.">sourceOpened</a>();
<a name="l00288"></a>00288             <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00289"></a>00289             }
<a name="l00290"></a>00290         }
<a name="l00291"></a>00291     <span class="keywordflow">else</span>
<a name="l00292"></a>00292         {
<a name="l00293"></a>00293         std::cout &lt;&lt; <span class="stringliteral">&quot;Error:: do not know how to open &quot;</span> &lt;&lt; qPrintable (mod_url_string) &lt;&lt; <span class="stringliteral">&quot; in QVVideoReader::open() method\n&quot;</span>;
<a name="l00294"></a>00294         }
<a name="l00295"></a>00295 
<a name="l00296"></a>00296 end_with_fail:
<a name="l00297"></a>00297     url = QString();
<a name="l00298"></a>00298     scheme = QString();
<a name="l00299"></a>00299     changing_size = <span class="keyword">false</span>;
<a name="l00300"></a>00300     cols = 0;
<a name="l00301"></a>00301     rows = 0;
<a name="l00302"></a>00302     fps = 0;
<a name="l00303"></a>00303     frames_grabbed = 0;
<a name="l00304"></a>00304     camera_opened = <span class="keyword">false</span>;
<a name="l00305"></a>00305     live_camera = <span class="keyword">false</span>;
<a name="l00306"></a>00306     end_of_video = <span class="keyword">true</span>;
<a name="l00307"></a>00307     availableGray = availableRGB3 = availableYUV = availableRGB = <span class="keyword">false</span>;
<a name="l00308"></a>00308     open_options = <a class="code" href="classQVVideoReader.html#a0a3fbed9c7741e2c85c65df76c8e604baead4ae3954a9b6c0bd876f8413c32bd0" title="Default options: don&amp;#39;t include any of the other options.">QVVideoReader::Default</a>;
<a name="l00309"></a>00309     source_mode = suggested_source_mode;
<a name="l00310"></a>00310     <span class="keyword">delete</span> base_reader;
<a name="l00311"></a>00311     base_reader = 0;
<a name="l00312"></a>00312     <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00313"></a>00313     }
<a name="l00314"></a>00314 
<a name="l00315"></a><a class="code" href="classQVVideoReader.html#a9dacd1ed256f1f48a193314d7e876140">00315</a> <span class="keywordtype">bool</span> <a class="code" href="classQVVideoReader.html#a9dacd1ed256f1f48a193314d7e876140" title="Grabs next frame in video source, saving corresponding image(s) in class internal...">QVVideoReader::grab</a>()
<a name="l00316"></a>00316     {
<a name="l00317"></a>00317     availableGray = availableRGB3 = availableYUV = availableRGB = <span class="keyword">false</span>;
<a name="l00318"></a>00318 
<a name="l00319"></a>00319     <span class="keywordflow">if</span>(source_mode == <a class="code" href="classQVVideoReader.html#ae7f437e441e6b0d6c0acbb1edbdc6421aaade5d3cb39ca255bd2a8537a8fa9e36" title="Source outputs gray only (BW) images by default.">QVVideoReader::GrayOnlyMode</a>)
<a name="l00320"></a>00320         {
<a name="l00321"></a>00321         <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> imgDummy1,imgDummy2;
<a name="l00322"></a>00322         <span class="keywordflow">if</span>(base_reader-&gt;<a class="code" href="classQVBaseReader.html#a16590831457eda6dd527834408b6cb1d" title="Pure virtual grab method.">grab</a>(imgGray, imgDummy1, imgDummy2))
<a name="l00323"></a>00323             {
<a name="l00324"></a>00324             availableGray = <span class="keyword">true</span>;
<a name="l00325"></a>00325             frames_grabbed++;
<a name="l00326"></a>00326             emit <a class="code" href="classQVVideoReader.html#a1953e03f3e394000b4f322838af2bc85" title="Signal emitted when a new frame has been grabbed.">newGrab</a>();
<a name="l00327"></a>00327             <span class="keywordflow">if</span>(fps != 0) simulateDelay(fps);
<a name="l00328"></a>00328             <span class="comment">// Update cols and rows (as for some video sources this could change from frame to frame; i.e. when</span>
<a name="l00329"></a>00329             <span class="comment">// reading image files from a directory). Force here even number of cols and rows too (for possible</span>
<a name="l00330"></a>00330             <span class="comment">// YUV conversions, with U and V half-sized):</span>
<a name="l00331"></a>00331             <span class="keywordflow">if</span>((imgGray.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()%2==1) or (imgGray.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()%2==1)) {
<a name="l00332"></a>00332                 <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> inter = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgGray.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() &amp; 0xfffffffe,imgGray.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() &amp; 0xfffffffe);
<a name="l00333"></a>00333                 <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgGray,inter);
<a name="l00334"></a>00334                 imgGray = inter;
<a name="l00335"></a>00335             }
<a name="l00336"></a>00336             <span class="keywordflow">if</span>(changing_size) {
<a name="l00337"></a>00337                 cols = imgGray.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>();
<a name="l00338"></a>00338                 rows = imgGray.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>();
<a name="l00339"></a>00339             }
<a name="l00340"></a>00340             <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00341"></a>00341             }
<a name="l00342"></a>00342         <span class="keywordflow">else</span>
<a name="l00343"></a>00343             {
<a name="l00344"></a>00344             end_of_video = <span class="keyword">true</span>;
<a name="l00345"></a>00345             <span class="keywordflow">if</span>(fps != 0) simulateDelay(fps);
<a name="l00346"></a>00346             <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00347"></a>00347             }
<a name="l00348"></a>00348         }
<a name="l00349"></a>00349     <span class="keywordflow">else</span> <span class="keywordflow">if</span>(source_mode == <a class="code" href="classQVVideoReader.html#ae7f437e441e6b0d6c0acbb1edbdc6421afdd3c4ba8977741d57f806a72aa11b96" title="Source outputs YUV images by default.">QVVideoReader::YUVMode</a>)
<a name="l00350"></a>00350         {
<a name="l00351"></a>00351         <span class="keywordflow">if</span>(base_reader-&gt;<a class="code" href="classQVBaseReader.html#a16590831457eda6dd527834408b6cb1d" title="Pure virtual grab method.">grab</a>(imgY, imgU, imgV))
<a name="l00352"></a>00352             {
<a name="l00353"></a>00353             availableYUV = <span class="keyword">true</span>;
<a name="l00354"></a>00354             frames_grabbed++;
<a name="l00355"></a>00355             emit <a class="code" href="classQVVideoReader.html#a1953e03f3e394000b4f322838af2bc85" title="Signal emitted when a new frame has been grabbed.">newGrab</a>();
<a name="l00356"></a>00356             <span class="keywordflow">if</span>(fps != 0) simulateDelay(fps);
<a name="l00357"></a>00357             <span class="comment">// Update cols and rows (as for some video sources this could change from frame to frame; i.e. when</span>
<a name="l00358"></a>00358             <span class="comment">// reading image files from a directory). Force here even number of cols and rows too (for possible</span>
<a name="l00359"></a>00359             <span class="comment">// YUV conversions, with U and V half-sized):</span>
<a name="l00360"></a>00360             <span class="keywordflow">if</span>((imgY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()%2==1) or (imgY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()%2==1)) {
<a name="l00361"></a>00361                 <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> inter = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() &amp; 0xfffffffe,imgY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() &amp; 0xfffffffe);
<a name="l00362"></a>00362                 <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgY,inter);
<a name="l00363"></a>00363                 imgY = inter;
<a name="l00364"></a>00364             }
<a name="l00365"></a>00365             <span class="keywordflow">if</span>(changing_size) {
<a name="l00366"></a>00366                 cols = imgY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>();
<a name="l00367"></a>00367                 rows = imgY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>();
<a name="l00368"></a>00368             }
<a name="l00369"></a>00369             <span class="keywordflow">if</span>(imgU.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != imgY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()/2 or imgU.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != imgY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()/2 or
<a name="l00370"></a>00370                imgV.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != imgY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()/2 or imgV.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != imgY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()/2 ) {
<a name="l00371"></a>00371                 std::cout &lt;&lt; <span class="stringliteral">&quot;ERROR in QVVideoReader::grab(): Y, U and U channels have not a correct size!\n&quot;</span>;
<a name="l00372"></a>00372                 exit(1);
<a name="l00373"></a>00373             }
<a name="l00374"></a>00374             <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00375"></a>00375             }
<a name="l00376"></a>00376         <span class="keywordflow">else</span>
<a name="l00377"></a>00377             {
<a name="l00378"></a>00378             end_of_video = <span class="keyword">true</span>;
<a name="l00379"></a>00379             <span class="keywordflow">if</span>(fps != 0) simulateDelay(fps);
<a name="l00380"></a>00380             <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00381"></a>00381             }
<a name="l00382"></a>00382         }
<a name="l00383"></a>00383     <span class="keywordflow">else</span> <span class="comment">// source_mode == RGBMode</span>
<a name="l00384"></a>00384         {
<a name="l00385"></a>00385         <span class="keywordflow">if</span>(base_reader-&gt;<a class="code" href="classQVBaseReader.html#a16590831457eda6dd527834408b6cb1d" title="Pure virtual grab method.">grab</a>(imgR, imgG, imgB))
<a name="l00386"></a>00386             {
<a name="l00387"></a>00387             availableRGB = <span class="keyword">true</span>;
<a name="l00388"></a>00388             frames_grabbed++;
<a name="l00389"></a>00389             emit <a class="code" href="classQVVideoReader.html#a1953e03f3e394000b4f322838af2bc85" title="Signal emitted when a new frame has been grabbed.">newGrab</a>();
<a name="l00390"></a>00390             <span class="keywordflow">if</span>(fps != 0) simulateDelay(fps);
<a name="l00391"></a>00391             <span class="comment">// Update cols and rows (as for some video sources this could change from frame to frame; i.e. when</span>
<a name="l00392"></a>00392             <span class="comment">// reading image files from a directory). Force here even number of cols and rows too (for possible</span>
<a name="l00393"></a>00393             <span class="comment">// YUV conversions, with U and V half-sized):</span>
<a name="l00394"></a>00394             <span class="keywordflow">if</span>((imgR.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()%2==1) or (imgR.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()%2==1)) {
<a name="l00395"></a>00395                 <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> inter = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgR.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() &amp; 0xfffffffe,imgR.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() &amp; 0xfffffffe);
<a name="l00396"></a>00396                 <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgR,inter);
<a name="l00397"></a>00397                 imgR = inter;
<a name="l00398"></a>00398                 <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgG,inter);
<a name="l00399"></a>00399                 imgG = inter;
<a name="l00400"></a>00400                 <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgB,inter);
<a name="l00401"></a>00401                 imgB = inter;
<a name="l00402"></a>00402             }
<a name="l00403"></a>00403             <span class="keywordflow">if</span>(changing_size) {
<a name="l00404"></a>00404                 cols = imgR.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>();
<a name="l00405"></a>00405                 rows = imgR.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>();
<a name="l00406"></a>00406             }
<a name="l00407"></a>00407             <span class="keywordflow">if</span>(imgG.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != imgR.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() or imgG.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != imgR.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() or
<a name="l00408"></a>00408                imgB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != imgR.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() or imgB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != imgR.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() ) {
<a name="l00409"></a>00409                 std::cout &lt;&lt; <span class="stringliteral">&quot;ERROR in QVVideoReader::grab(): R, G and B channels are not of the same size!\n&quot;</span>;
<a name="l00410"></a>00410                 exit(1);
<a name="l00411"></a>00411             }
<a name="l00412"></a>00412             <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00413"></a>00413             }
<a name="l00414"></a>00414         <span class="keywordflow">else</span>
<a name="l00415"></a>00415             {
<a name="l00416"></a>00416             end_of_video = <span class="keyword">true</span>;
<a name="l00417"></a>00417             <span class="keywordflow">if</span>(fps != 0) simulateDelay(fps);
<a name="l00418"></a>00418             <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00419"></a>00419             }
<a name="l00420"></a>00420         }
<a name="l00421"></a>00421     }
<a name="l00422"></a>00422 
<a name="l00423"></a><a class="code" href="classQVVideoReader.html#a7c9765c5ed51cdf2349e456dc7a6f3f2">00423</a> <span class="keywordtype">void</span> <a class="code" href="classQVVideoReader.html#a7c9765c5ed51cdf2349e456dc7a6f3f2" title="Gets current frame in the form of a gray image.">QVVideoReader::getGrayImage</a>(<a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> &amp;imageGray)
<a name="l00424"></a>00424     {
<a name="l00425"></a>00425     <span class="keywordflow">if</span>(not availableGray)
<a name="l00426"></a>00426         {
<a name="l00427"></a>00427         <span class="keywordflow">if</span>(availableYUV) {
<a name="l00428"></a>00428             imgGray = imgY;
<a name="l00429"></a>00429             availableGray = <span class="keyword">true</span>;
<a name="l00430"></a>00430             }
<a name="l00431"></a>00431         <span class="keywordflow">else</span> <span class="keywordflow">if</span>(availableRGB)
<a name="l00432"></a>00432             {
<a name="l00433"></a>00433             imgRGB = <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>(imgR,imgG,imgB);
<a name="l00434"></a>00434             imgGray = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(),imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00435"></a>00435             RGBToGray(imgRGB,imgGray);
<a name="l00436"></a>00436             availableGray = <span class="keyword">true</span>;
<a name="l00437"></a>00437             availableRGB3 = <span class="keyword">true</span>;
<a name="l00438"></a>00438             }
<a name="l00439"></a>00439         <span class="keywordflow">else</span> <span class="keywordflow">if</span>(availableRGB3)
<a name="l00440"></a>00440             {
<a name="l00441"></a>00441             imgGray = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(),imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00442"></a>00442             RGBToGray(imgRGB,imgGray);
<a name="l00443"></a>00443             availableGray = <span class="keyword">true</span>;
<a name="l00444"></a>00444             }
<a name="l00445"></a>00445         }
<a name="l00446"></a>00446 
<a name="l00447"></a>00447     <span class="keywordflow">if</span>( ( (imgGray.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != rows) or (imgGray.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != cols) ) )
<a name="l00448"></a>00448         {
<a name="l00449"></a>00449         imageGray = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(cols,rows);
<a name="l00450"></a>00450         <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgGray,imageGray);
<a name="l00451"></a>00451         }
<a name="l00452"></a>00452     <span class="keywordflow">else</span>
<a name="l00453"></a>00453         imageGray = imgGray;
<a name="l00454"></a>00454     }
<a name="l00455"></a>00455 
<a name="l00456"></a><a class="code" href="classQVVideoReader.html#a7922b56a1ea4e76444aeda9ea4a3d093">00456</a> <span class="keywordtype">void</span> <a class="code" href="classQVVideoReader.html#a7922b56a1ea4e76444aeda9ea4a3d093" title="Gets current frame in the form of a 3 channel RGB image.">QVVideoReader::getRGBImage</a>(<a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a> &amp; imageRGB)
<a name="l00457"></a>00457     {
<a name="l00458"></a>00458     <span class="keywordflow">if</span>(not availableRGB3)
<a name="l00459"></a>00459         {
<a name="l00460"></a>00460         <span class="keywordflow">if</span>(availableRGB)
<a name="l00461"></a>00461             {
<a name="l00462"></a>00462             imgRGB = <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>(imgR,imgG,imgB);
<a name="l00463"></a>00463             availableRGB3 = <span class="keyword">true</span>;
<a name="l00464"></a>00464             }
<a name="l00465"></a>00465         <span class="keywordflow">else</span> <span class="keywordflow">if</span>(availableYUV)
<a name="l00466"></a>00466             {
<a name="l00467"></a>00467             imgRGB = <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>(imgY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(),imgY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00468"></a>00468             <a class="code" href="group__qvippICC.html#ga1a13cf2a5106e65fc94f046e98f547ca">YUV420ToRGB</a>(imgY,imgU,imgV,imgRGB);
<a name="l00469"></a>00469             availableRGB3 = <span class="keyword">true</span>;
<a name="l00470"></a>00470             }
<a name="l00471"></a>00471         <span class="keywordflow">else</span> <span class="keywordflow">if</span> (availableGray)
<a name="l00472"></a>00472             {
<a name="l00473"></a>00473             imgRGB = <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>(imgGray,imgGray,imgGray);
<a name="l00474"></a>00474             }
<a name="l00475"></a>00475         }
<a name="l00476"></a>00476 
<a name="l00477"></a>00477     <span class="keywordflow">if</span>( ( (imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != rows) or (imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != cols) ) )
<a name="l00478"></a>00478         {
<a name="l00479"></a>00479         imageRGB = <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>(cols,rows);
<a name="l00480"></a>00480         <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgRGB,imageRGB);
<a name="l00481"></a>00481         }
<a name="l00482"></a>00482     <span class="keywordflow">else</span>
<a name="l00483"></a>00483         imageRGB = imgRGB;
<a name="l00484"></a>00484     }
<a name="l00485"></a>00485 
<a name="l00486"></a><a class="code" href="classQVVideoReader.html#a0e6dfc8f13e4aa4792c589ddd41dcb71">00486</a> <span class="keywordtype">void</span> <a class="code" href="classQVVideoReader.html#a7922b56a1ea4e76444aeda9ea4a3d093" title="Gets current frame in the form of a 3 channel RGB image.">QVVideoReader::getRGBImage</a>(<a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> &amp;imageR, <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> &amp;imageG, <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> &amp;imageB)
<a name="l00487"></a>00487     {
<a name="l00488"></a>00488     <span class="keywordflow">if</span>(not availableRGB)
<a name="l00489"></a>00489         {
<a name="l00490"></a>00490         <span class="keywordflow">if</span>(availableRGB3)
<a name="l00491"></a>00491             {
<a name="l00492"></a>00492             imgR = imgG = imgB = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(),imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00493"></a>00493             Copy(imgRGB,0,imgR);
<a name="l00494"></a>00494             Copy(imgRGB,1,imgG);
<a name="l00495"></a>00495             Copy(imgRGB,2,imgB);
<a name="l00496"></a>00496             availableRGB = <span class="keyword">true</span>;
<a name="l00497"></a>00497             }
<a name="l00498"></a>00498         <span class="keywordflow">else</span> <span class="keywordflow">if</span>(availableYUV)
<a name="l00499"></a>00499             {
<a name="l00500"></a>00500             imgRGB = <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>(imgY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(),imgY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00501"></a>00501             <a class="code" href="group__qvippICC.html#ga1a13cf2a5106e65fc94f046e98f547ca">YUV420ToRGB</a>(imgY,imgU,imgV,imgRGB);
<a name="l00502"></a>00502             imgR = imgG = imgB = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(),imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00503"></a>00503             Copy(imgRGB,0,imgR);
<a name="l00504"></a>00504             Copy(imgRGB,1,imgG);
<a name="l00505"></a>00505             Copy(imgRGB,2,imgB);
<a name="l00506"></a>00506             availableRGB = <span class="keyword">true</span>;
<a name="l00507"></a>00507             availableRGB3 = <span class="keyword">true</span>;
<a name="l00508"></a>00508             }
<a name="l00509"></a>00509         <span class="keywordflow">else</span> <span class="keywordflow">if</span> (availableGray)
<a name="l00510"></a>00510             {
<a name="l00511"></a>00511             imgR = imgGray;
<a name="l00512"></a>00512             imgG = imgGray;
<a name="l00513"></a>00513             imgB = imgGray;
<a name="l00514"></a>00514             availableRGB = <span class="keyword">true</span>;
<a name="l00515"></a>00515             }
<a name="l00516"></a>00516         }
<a name="l00517"></a>00517 
<a name="l00518"></a>00518     <span class="keywordflow">if</span>(  ( (imgR.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != rows) or (imgR.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != cols) or
<a name="l00519"></a>00519            (imgG.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != rows) or (imgG.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != cols) or
<a name="l00520"></a>00520            (imgB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != rows) or (imgB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != cols) ) )
<a name="l00521"></a>00521         {
<a name="l00522"></a>00522         imageR = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(cols,rows);
<a name="l00523"></a>00523         imageG = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(cols,rows);
<a name="l00524"></a>00524         imageB = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(cols,rows);
<a name="l00525"></a>00525         <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgR,imageR);
<a name="l00526"></a>00526         <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgG,imageG);
<a name="l00527"></a>00527         <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgB,imageB);
<a name="l00528"></a>00528         }
<a name="l00529"></a>00529     <span class="keywordflow">else</span>
<a name="l00530"></a>00530         {
<a name="l00531"></a>00531         imageR = imgR;
<a name="l00532"></a>00532         imageG = imgG;
<a name="l00533"></a>00533         imageB = imgB;
<a name="l00534"></a>00534         }
<a name="l00535"></a>00535     }
<a name="l00536"></a>00536 
<a name="l00537"></a><a class="code" href="classQVVideoReader.html#af79c7379cbbfc613b64d21a74eb7f8eb">00537</a> <span class="keywordtype">void</span> <a class="code" href="classQVVideoReader.html#af79c7379cbbfc613b64d21a74eb7f8eb" title="Gets current frame in the form of a gray image channel (Y) and two chrominance image...">QVVideoReader::getYUVImage</a>(<a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> &amp;imageY, <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> &amp;imageU, <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a> &amp;imageV)
<a name="l00538"></a>00538     {
<a name="l00539"></a>00539     <span class="keywordflow">if</span>(not availableYUV)
<a name="l00540"></a>00540         {
<a name="l00541"></a>00541         <span class="keywordflow">if</span>(availableRGB3)
<a name="l00542"></a>00542             {
<a name="l00543"></a>00543             imgY = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(),imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00544"></a>00544             imgU = imgV = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()/2,imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()/2);
<a name="l00545"></a>00545             <a class="code" href="group__qvippICC.html#ga6bed5439d377438a4d1a687a2d326a69">RGBToYUV420</a>(imgRGB,imgY,imgU,imgV);
<a name="l00546"></a>00546             availableYUV = <span class="keyword">true</span>;
<a name="l00547"></a>00547             }
<a name="l00548"></a>00548         <span class="keywordflow">else</span> <span class="keywordflow">if</span>(availableRGB)
<a name="l00549"></a>00549             {
<a name="l00550"></a>00550             imgRGB = <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>(imgR,imgG,imgB);
<a name="l00551"></a>00551             imgY = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(),imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00552"></a>00552             imgU = imgV = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()/2,imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()/2);
<a name="l00553"></a>00553             <a class="code" href="group__qvippICC.html#ga6bed5439d377438a4d1a687a2d326a69">RGBToYUV420</a>(imgRGB,imgY,imgU,imgV);
<a name="l00554"></a>00554             availableYUV = <span class="keyword">true</span>;
<a name="l00555"></a>00555             availableRGB3 = <span class="keyword">true</span>;
<a name="l00556"></a>00556             }
<a name="l00557"></a>00557         <span class="keywordflow">else</span> <span class="keywordflow">if</span> (availableGray)
<a name="l00558"></a>00558             {
<a name="l00559"></a>00559             imgRGB = <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>(imgGray,imgGray,imgGray);
<a name="l00560"></a>00560             imgY = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(),imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00561"></a>00561             imgU = imgV = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(imgRGB.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>()/2,imgRGB.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>()/2);
<a name="l00562"></a>00562             <a class="code" href="group__qvippICC.html#ga6bed5439d377438a4d1a687a2d326a69">RGBToYUV420</a>(imgRGB,imgY,imgU,imgV);
<a name="l00563"></a>00563             availableRGB3 = <span class="keyword">true</span>;
<a name="l00564"></a>00564             availableYUV = <span class="keyword">true</span>;
<a name="l00565"></a>00565             }
<a name="l00566"></a>00566         }
<a name="l00567"></a>00567 
<a name="l00568"></a>00568     <span class="keywordflow">if</span>( ( (imgY.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != rows)   or (imgY.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != cols)   or
<a name="l00569"></a>00569           (imgU.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != rows/2) or (imgU.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != cols/2) or
<a name="l00570"></a>00570           (imgV.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != rows/2) or (imgV.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != cols/2) ) )
<a name="l00571"></a>00571         {
<a name="l00572"></a>00572         imageY = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(cols,rows);
<a name="l00573"></a>00573         imageU = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(cols/2,rows/2);
<a name="l00574"></a>00574         imageV = <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>(cols/2,rows/2);
<a name="l00575"></a>00575         <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgY,imageY);
<a name="l00576"></a>00576         <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgU,imageU);
<a name="l00577"></a>00577         <a class="code" href="group__qvippIGT.html#gafeadedf07a0e3f27bf0c39e361339e23" title="Changes an image size.This function copies the content of the ROI in the source image...">Resize</a>(imgV,imageV);
<a name="l00578"></a>00578         }
<a name="l00579"></a>00579     <span class="keywordflow">else</span>
<a name="l00580"></a>00580         {
<a name="l00581"></a>00581         imageY = imgY;
<a name="l00582"></a>00582         imageU = imgU;
<a name="l00583"></a>00583         imageV = imgV;
<a name="l00584"></a>00584         }
<a name="l00585"></a>00585     }
<a name="l00586"></a>00586 
<a name="l00587"></a><a class="code" href="classQVVideoReader.html#ab9f4cfa4e439e0bb5ffd377e514de091">00587</a> <span class="keywordtype">bool</span> <a class="code" href="classQVVideoReader.html#ab9f4cfa4e439e0bb5ffd377e514de091" title="Closes the video source.">QVVideoReader::close</a>()
<a name="l00588"></a>00588     {
<a name="l00589"></a>00589     <span class="keywordflow">if</span>(base_reader != 0)
<a name="l00590"></a>00590         {
<a name="l00591"></a>00591         <span class="keywordflow">if</span>(base_reader-&gt;<a class="code" href="classQVBaseReader.html#adc30e77972461b2ee1ec46ebfdacbd51" title="Pure virtual close method.">close</a>())
<a name="l00592"></a>00592             {
<a name="l00593"></a>00593             url = QString();
<a name="l00594"></a>00594             scheme = QString();
<a name="l00595"></a>00595             cols = 0;
<a name="l00596"></a>00596             rows = 0;
<a name="l00597"></a>00597             fps = 0;
<a name="l00598"></a>00598             frames_grabbed = 0;
<a name="l00599"></a>00599             camera_opened = <span class="keyword">false</span>;
<a name="l00600"></a>00600             live_camera = <span class="keyword">false</span>;
<a name="l00601"></a>00601             end_of_video = <span class="keyword">true</span>;
<a name="l00602"></a>00602             availableGray = availableRGB3 = availableYUV = availableRGB = <span class="keyword">false</span>;
<a name="l00603"></a>00603             open_options = <a class="code" href="classQVVideoReader.html#a0a3fbed9c7741e2c85c65df76c8e604baead4ae3954a9b6c0bd876f8413c32bd0" title="Default options: don&amp;#39;t include any of the other options.">Default</a>;
<a name="l00604"></a>00604             source_mode = <a class="code" href="classQVVideoReader.html#ae7f437e441e6b0d6c0acbb1edbdc6421afdd3c4ba8977741d57f806a72aa11b96" title="Source outputs YUV images by default.">YUVMode</a>;
<a name="l00605"></a>00605             <span class="keyword">delete</span> base_reader;
<a name="l00606"></a>00606             base_reader = 0;
<a name="l00607"></a>00607             emit <a class="code" href="classQVVideoReader.html#a887bd81fc95920d2fd8123949db59086" title="Signal emitted when video source has been closed.">sourceClosed</a>();
<a name="l00608"></a>00608             <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00609"></a>00609             }
<a name="l00610"></a>00610         }
<a name="l00611"></a>00611     <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00612"></a>00612     }
<a name="l00613"></a>00613 
<a name="l00614"></a><a class="code" href="classQVVideoReader.html#aef184d33d65b5e7cca33189a148f1037">00614</a> <span class="keywordtype">bool</span> <a class="code" href="classQVVideoReader.html#aef184d33d65b5e7cca33189a148f1037" title="Tries to move to a given position in the video source (if possible).">QVVideoReader::seek</a>(<span class="keywordtype">int</span> pos)
<a name="l00615"></a>00615     {
<a name="l00616"></a>00616     <span class="keywordflow">return</span> base_reader-&gt;<a class="code" href="classQVBaseReader.html#a7f47dba42a7dbdd9c04b364b8bf890b0" title="Pure virtual method to set the current position in the video.">seek</a>(pos);
<a name="l00617"></a>00617     }
<a name="l00618"></a>00618 
<a name="l00619"></a><a class="code" href="classQVVideoReader.html#afea030febc7f6e776968d10079002e37">00619</a> <span class="keywordtype">int</span> <a class="code" href="classQVVideoReader.html#afea030febc7f6e776968d10079002e37" title="Gets the length of the video source.">QVVideoReader::getLength</a>()<span class="keyword"> const</span>
<a name="l00620"></a>00620 <span class="keyword">    </span>{
<a name="l00621"></a>00621     <span class="keywordflow">return</span> base_reader-&gt;<a class="code" href="classQVBaseReader.html#ac0b9b649c43720e01d1fff5ac2516997" title="Pure virtual method to get the length of the video.">getLength</a>();
<a name="l00622"></a>00622     }
<a name="l00623"></a>00623 
<a name="l00624"></a><a class="code" href="classQVVideoReader.html#ac169b0d7746551424f5ef4fe471a9c7d">00624</a> <span class="keywordtype">int</span> <a class="code" href="classQVVideoReader.html#ac169b0d7746551424f5ef4fe471a9c7d" title="Gets the current position in the video source.">QVVideoReader::getPos</a>()<span class="keyword"> const</span>
<a name="l00625"></a>00625 <span class="keyword">    </span>{
<a name="l00626"></a>00626     <span class="keywordflow">return</span> base_reader-&gt;<a class="code" href="classQVBaseReader.html#ab480a1785c777028fc4e73e86139fac8" title="Pure virtual method to get the current position in the video.">getPos</a>();
<a name="l00627"></a>00627     }
<a name="l00628"></a>00628 
</pre></div></div>
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<center><a href="http://perception.inf.um.es/QVision">QVision framework</a>.
<a href="http://perception.inf.um.es">PARP research group</a>.
Copyright &copy; 2007, 2008, 2009, 2010, 2011.</center>
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